Electric connector



H'. G. Ross.

`EL'ECTRIC CONNECTOR.

PPLCATIN HLED DEC- 6, |920.

1,431,542. K Patented 0@t.10,1922.

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YHMI I: ZZ

n Patented oci. `1o, v19222.

' invented certa-in -HUGH Gannon Boss, on o'r'rAwA', oNTAaro, CANADA ELECTRIC coNNnc'ron.

Application tiled December' 1920. Serial No. 428,500.

To all whom z't may concern:

Be it 'known that I, HUGH' GORDON Ross,

a subject of the King of Great Britain, and resident of the cit ince of Ontario, lghminion of' Canada, have new` and useful Improvement-s in Electric Connectors, of which the following is a specification.

` This invention relates to improvementsin electric' connectors part-icularlyof the type used to connect conductors to electric irons,

l v stoves, heaters and the like; and the objects of the invention are to providemeans for automatically disconnecting the current when the heat ofthe utensil exceeds a pre'- determined amount; further objects are to render thedevice of a simple and compact onstruction', composed of few parts all well esl of t em;"and it consistsessentally o f the improved construction hereinafter described in detail in they accompanying specification and drawings.

In the drawingsz.

Figure 1 is a plan viewof a connector em-' bodying the present invention with the top part removed and showing it connected at the terminals of an -iron or the like.

Figure 2 is a sectional .view von the line Figure 3 isa sectional view onthe line y-y, Figure 1'.

`In the drawingsilike characters ofreference indicate corresponding parts in all the figures.

vReferring to the drawings: e, I

A and- B represent two parts constituting the casin Iof the connector formed of suitable'insu ating material such as'vulcanite or fibre; 110,.and 11 indicate tubular connecting fmembers adapted to cnnectwith the` lconnecting posts or pins 12 and 13 on an l the connector has within the same a thermoelectricall instance, e an iron. n e i lIn. accordance wlth the present mventlon,

static control support, and break meansare also contained inthe support. These means including a metallic thermostatic couple 145iA which may be composed of two thin strips of metal having different coeiiicients of exspring pension which are secured to a flat Ylmonnted within a recess 16, the flat spring at one en d being connected to ametallic con- `V of Ottawa, in the Proved to perform the functlons requiredv ing.

heated utensil: Cfwhich may, for

vgagedbyk the spring.

, part 'connector' 'ofinsulating materia 4a thermostatic couple;

and designed to engage with the end of a threaded conducting pin 18 mounted in the end of the conductonll and adapted to be adjusted by means of 'a mill head 19 on the outer end thereof, the pin 18l extending in a suitable recess 20 formed in'"the connector. To prevent excess movement of the pin in opposite directions, collars. 21 and 22are formed thereon. v

23 indicates one of the conductors for supplying current Ito the connector which is connected to the member 10. Theother conductor 24 is connected to a binding post 25 which is connected by a conductor 26 with the conducting post 17. The conductors 23 and 24 and the connector may be surrounded by a reinforcing spring 27 in accordance" with the usual practice.

It will be seen that should vthe temperature ofthe iron, or other utensil, C reach an excessive amount, the thermostatic couple 14 will move the spring 15 awayfrom the end of the conductor 18 to the post indicatedin dotted lines in Figure 1 thus breaking the connection and preventing overheat- As 4'many changes could be made in the above construction, and many apparently widely diferent embodiments'of my invention within the scope of the claims,.con structed without departing from the spirit or scope thereof, it is intended that all mat'- ter contained in the accompanying specifiillustrative and not in a lim-itin sense. What I claim as my invention 1s:

`cation and-drawings shall be interpreted as 1. An electric connector comprisin va twov part connector of insulating materia ,a pair a thermostatic couple, a'spring` connected to v the couple, a 'Contact member yconnected to, one of .the sockets and adapted to be en- 2.- An electric connectorcomprisini a twooftubular sockets mounted within the same,

a spring connected to the couple, a contact" member connected. to i one of the sockets" and adapted to be enof tubular sockets mounted within the same,

loo y a pairv gaged by the spring, and a heat conducting pin also on the insulating member adapted member connected to the spring and extendto co-operate with the springto break the ing exterior to the connector. electric connections when the temperature 3. An electric connector comprising an reachesI an excessive amount.A 5 insulating member, a current connecting In Witness whereof I have hereunto Set 15 fieans on'the insulating member, a heaticonvmy hand inthe presence of a Witness.

uct-in member project'm outwardl jrom the insgulating member, agthermostatic couf HUGH GORDON ROSS' ple mounted on the insulating member, in- Witness: 10 cluding a spring `member and a conducting RUSSEL S. SMART. 

